# Stack Up - Stack items bottom-up to build a tower

> Educational stacking game for children to develop visual perception and math skills. (iPhone/iPad app by STEP BY STEP.)

- Source: https://appshunter.io/ios/app/stack-up-stack-items-bottom-up-to-build-a-tower/id1135865797 (this page in markdown: same URL + `.md`)
- Developer: [STEP BY STEP](https://appshunter.io/developer/961412234)
- Category: Education, Games, Puzzle
- Price: Free
- Rating: 5.00/5 from 6 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 65 MB
- Languages: American English
- Released: 2016-09-11
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/stack-up-stack-items-bottom-up-to-build-a-tower/id1135865797/reviews.md

## What is Stack Up?

- Full version.
- No in-app purchases. 
- No ads. 
- Safe for kids.

Welcome to “Stack Up”. This educational app is designed for children aged 2.5 and above. Here children can learn to arrange items bottom-up according to their width. It is fun, and it helps them develop visual perception skills, and primary math concepts.

STEP BY STEP is a professional EdTech studio that focuses on developing educational apps for children aged 1 to 5 years old. During these critical years, children enter a new learning stage every few months. Our apps support and strengthen the development of crucial skills for each learning stage. This way we guide your children, step by step, throughout this entire age range.

Our key values are perfection and simplicity. We believe that small details make a big difference, so we give great attention to every detail — both in content and design. Most importantly, we keep our apps simple — simple to understand and simple to use.

While playing our games, children will engage in simple activities, such as matching, pairing, ordering, grouping, and sorting. This allows them to practice essential skills, such as: categorization, conceptualization, generalization, abstraction, memory, language, math, visual perception, fine motor, accuracy, attention, and focus. They will learn about shapes, colors, animals, fruit, vegetables, clothing, tools, vehicles, furniture, professions, toys, etc., — all while playing.

The levels are generally arranged by difficulty. The first levels are usually quite simple — their main objective is to teach players critical thinking and problem solving. However, the exercises become increasingly challenging as the child advances within the game. 

Our applications avoid distractions such as popups, unnecessary animation, and noisy feedback. We keep our applications safe for children — no advertisements, no unsafe links to external content, no popups, etc.

Furthermore, our experience indicates that our apps can be very helpful for children with special-needs¹, and that they can function as useful tools in both speech-language therapy² and in occupational therapy³. In addition, our apps have been found useful for adults with disabilities or dementia⁴.

For this reason, we added two important features: the first one was designed for teachers, therapists, and speech pathologists, which allows them to track the progress of their students; the second feature makes our apps also accessible for users with disabilities, and on this matter we would like to thank the Technology Consulting Center at “Beit Issie Shapiro”⁵ for their professional guidance and consultation regarding accessibility.

________

¹ Special needs - Learning difficulties due to learning disabilities, communication disabilities, emotional or behavioural disorders, physical disabilities and/or developmental disabilities, which may be caused by Autism (Autistic Spectrum Disorders), Down Syndrome, Dyslexia, Tourette Syndrome, etc.

² Speech-language therapy - Treatment of communication disorders by speech-language pathologists (SLP).

³ Occupational therapy (OT) - Treatment meant to develop, recover, or maintain daily living and work skills for people with a physical, mental or developmental condition.

⁴ Dementia -  A condition caused by brain injury (BI), brain damage or brain diseases, such as Alzheimer’s, Lewy bodies (DLB), Vascular dementia, etc.

⁵ "Beit Issie Shapiro" is a leading non-profit organization that develops therapies for people with disabilities, and also acts as a ‘Special Consultant’ to the United Nations.

## Key features

- Arranging items by width
- Develops visual perception
- Teaches primary math concepts
- Progress tracking for educators
- Safe for children
- Simple and intuitive design

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/stack-up-stack-items-bottom-up-to-build-a-tower/id1135865797/reviews.md

### 5/5 — Great App

*2023-01-14*

I work with children who have Autism or related disorders.  They love this game.  Good for eye-hand coordination and spatial order.

### 5/5 — Los Angeles SLP

*2017-02-26*

Great for encouraging language based on conceptual understanding!

### 5/5 — Love the app

*2016-12-19*

I use this app with my child with autism. This has been helpful for him to learn logical concept like stacking size wise. I love that they have a lot of games in one app and my son never gets bored.

## Frequently asked questions about Stack Up

### What is Stack Up's main learning objective?

Stack Up's main learning objective is to help children aged 2.5 and above learn to arrange items bottom-up according to their width. This process helps develop their visual perception skills and primary math concepts.

### Is Stack Up suitable for children with special needs?

Yes, Stack Up has been found to be very helpful for children with special needs, including those with learning disabilities, communication disabilities, and developmental disabilities. It can also be a useful tool in speech-language and occupational therapy.

### How does Stack Up track progress?

Stack Up includes a feature designed for teachers, therapists, and speech pathologists that allows them to track the progress of their students. This helps educators monitor a child's development within the app.

### Does Stack Up have ads?

No, Stack Up is ad-free. The app is designed to avoid distractions such as advertisements, popups, and unnecessary animation to provide a safe and focused learning environment for children.

### What age rating does Stack Up have?

Stack Up has an age rating of 4+. It is designed for children aged 2.5 and above, focusing on early learning and skill development.

### What devices is Stack Up available on?

Stack Up is currently supported on iPads. The app is designed to leverage the tablet's interface for an optimal learning experience for young children.

### How often is Stack Up updated?

Stack Up was last updated on April 7, 2017, with version 1.5. The developer, STEP BY STEP, focuses on creating educational apps for young children.

### What kind of activities are included in Stack Up?

Stack Up includes simple activities such as matching, pairing, ordering, grouping, and sorting. These activities help children practice essential skills like categorization, memory, language, and math.

## Version history (last 5 releases)

### 1.5 — 2017-04-07

This app has been updated by Apple to display the Apple Watch app icon.

Improving accessibility options for kids with special needs.

### 1.4 — 2017-02-09

Adding accessibility settings for kids with with special needs.

### 1.3 — 2016-12-19

Adding accessibility features for kids with with special needs.

### 1.2 — 2016-11-23

Sound quality enhancement, and Assistive Technology improvements (for VoiceOver users, Switch Control users, and for any other user who has difficulty with the Swipe gesture).

### 1.1 — 2016-09-09

Inclusive Design Improvements (for VoiceOver users, Switch Control users, and for any other user who has difficulty with the Swipe gesture).

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## More apps by STEP BY STEP

- [Same Same - Match identical items](https://appshunter.io/ios/app/same-same-match-identical-items/id1135853830)
- [Pair By Kind - Match visually related items](https://appshunter.io/ios/app/pair-by-kind-match-visually-related-items/id1135858883)
- [Pair By Nature - Match logically related items](https://appshunter.io/ios/app/pair-by-nature-match-logically-related-items/id1135860570)
- [Pair By Number - Match quantities and numbers](https://appshunter.io/ios/app/pair-by-number-match-quantities-and-numbers/id1135861880)
- [Place in Groups - Create groups of related items](https://appshunter.io/ios/app/place-in-groups-create-groups-of-related-items/id1135861893)
- [Sort By Kind - Sort visually related items](https://appshunter.io/ios/app/sort-by-kind-sort-visually-related-items/id1135864577)

All apps by STEP BY STEP: https://appshunter.io/developer/961412234

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*